%0 Journal Article %A G. V. Lavrelashvili %T Nonconservation of fermion quantum numbers in the case of tunneling transitions in gauge theories %J Teoretičeskaâ i matematičeskaâ fizika %D 1987 %P 245-254 %V 73 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_1987_73_2_a7/ %G ru %F TMF_1987_73_2_a7